Actually I’m not sure, MSFS uses OpenXR so I guessed it had to be installed, no matter which headset you’re using.
But maybe not after all 
EDIT: You’re right, I uninstalled it and it still working fine.
Actually I’m not sure, MSFS uses OpenXR so I guessed it had to be installed, no matter which headset you’re using.
But maybe not after all 
EDIT: You’re right, I uninstalled it and it still working fine.